}
    #pullDown, #pullUp {
        background:#fff;
        height:40px;
        line-height:40px;
        padding:5px 10px;
        border-bottom:1px solid #ccc;
        font-weight:bold;
        font-size:14px;
        color:#888;
    }
    #pullDown .pullDownIcon, #pullUp .pullUpIcon {
        display:block; float:left;
        width:40px; height:40px;
        /* background:url(pull-icon@2x.png) 0 0 no-repeat; */
        -webkit-background-size:40px 80px; background-size:40px 80px;
        -webkit-transition-property:-webkit-transform;
        -webkit-transition-duration:250ms;
    }
    #pullDown .pullDownIcon {
        -webkit-transform:rotate(0deg) translateZ(0);
    }
    #pullUp .pullUpIcon {
        -webkit-transform:rotate(-180deg) translateZ(0);
    }